Corrugated-board machine



May 13, 1924.,

E. E. MASTON CORRUGATED BOARD momma Fil ly 16 1920 3 Sheets-Sheet l May 13 192% 1,493,763

. E. E. MASTON CORRUGATED BOARD MACHINE Filed July 16 I920 3 Sheets-Sheet Z Imam/6071' $11M 61 Ma May 1 192 E. E. MASTON CORRUGATED BOARD MACHINE Filed July 16 1920 I5 Sheets-Sheet 5 Patented May 13, 1924.

EDWARD E. MASTON, OF FAIRMONT, WEST VIRGINIA, ASSIGNOR '10 MID-WEST BOX COMPANY, OF ANDERSON, INDIANA, A OORIOBATION OF INDIANA.

CORRUGATED-BOARD MACHINE.

Application filed July 16, 1920. SerialNo. 396,685.

To all whom it may concern:

Be it known that I, EDWARD E. MASTON, a citizen of the United States, and a' resident of Fairmont, in the county of Marion and State of West Virginia, have invented certain new and useful Improvements in Corrugated-Board Machines, of which the following is a full, clear, and exact description.

The invention relates to machines for making corrugated or other board, and more particularly to the mechanism employed for cutting the continuous web into sheets of the desired size.

The object of the invention is to provide improved cutting mechanism which is adjustable to sever sheets of different lengths from the web.

The invention consists in the several novel features hereinafter set forth and more particularly defined by claims at the conclusion hereof.

In the drawings: Fig. 1 is aside elevation of a machine embodying the invention. Fig.

2 2 is a detail of the mechanism for operating the knife which is rotatably mounted on the reciprocable carriage. Fig. 3 is an elevation of the switch which is operated by the end of the Web to control the electro-magnct 3 which operates the clutch-trip. Fig. 4 is a section on line 4-4 of Fig. 3. Fig. 5 is a longitudinal section. Fig. 6 is a detail of the clutch-trip and its resettingv mechanism.

Fig. 7 is a sectlon of the clutch for operat- 6 ing the cutter-mechanism. Fig. 8 is a detail perspective of the trip and the stop lever for the clutch. Fig. 9 is a plan.

The machine comprises a frame 9 of any suitable construction. Rolls 10 which may E be the final rolls acting on or feeding the web of corrugated board are continuously driven by, gears 11, one of which will be driven from the driving mechanism of the machine for making the board, and in synchronism with the feed of the web to rolls 10. i

A gear-wheel 12,- fixed to the shaft of the lower roll, meshes with a pinion '13 on a shaft 14 which is mounted in bearings 15 on the frame 9. A sprocket-wheel 16 on the shaft 14, a chain 17, driven by said sprocket, and a sprocket 18 fixed to a clutch- Wheel 19 serve to drive said wheel continuously while the corrugated board machine is in operation. Wheel 19 constitutes the continuously driven member of a clutch, the operation of which is controlled by the web, for intermittently operating the cutter mechanism. Wheel 19 is loose on a shaft 20 and serves to drive said shaft through a pair of dogs 21 which are-connected by links 22 to a collar 23 fixed to said shaft. Springs 24, connected to said dog's respectively and to posts 25 on said collar, serve to normally pull the dogs into engagement with the internal friction-face 26 of the wheel 19. An equalizing bar 27 is connected to the dogs by links 28. This bar causes the dogs to be conjointly shifted into or out of engagement with the clutch-wheel 19. A. W stop-pin 29 is fixed to one of the dogs and is adapted to be caught by a notch 30 in a stop-lever 31 which has its lower end pivoted to the frame, as at 32. In operation, when the pin 29 passes into the notch 30 and is arrested by stop-lever 31, both of the dogs will, through the equalizer bar 27, be

'held against rotation and disengaged from the clutch wheel 19. When the stop-lever 31 is withdrawn from the path of pin 29, $0 springs 24 will draw the dogs into operative engagement with the friction face 26 of the clutch-wheel 19 and cause the shaft 20 to be driven. The stop-notch 30 and pin 29 are adapted to arrest the shaft at but one point, 85 so that upon each operation of the stop-bar the shaft 20 will make one complete revolution. A spring 31 tends to withdraw lever 31 from the stop-pin 29. A trip-lever 38 is pivoted to the frame at 38 and is notched, 90 as at 36", to engage a stud 31 on lever 31 and lock the lever 31 in position to arrest the stop-pin 29.

The clutch is controlled to intermittently operate the cutter-mechanism by the web @5 through electro-magnetic means adapted to operate trip 38 to release the stop-lever. 31.

This means comprises a solenoid magnet which has a helix 81 supported in a'jacket 82 which is sustained above the frame b m5? a support 83, and an armature 84. A link 85 connects the lower end of said'armature to the trip-lever 38, so the said lever will be lifted to release lever 31 when the magnet is energized. This magnet is included in an electric circuit comprising conductors 86, 87 and a switch comprising contacts 70 and 71. This switch is mounted on a block 72 which is adjustably secured on a bar 73 by a clamp-screw 74. Contact 71 is secured to block 72 and contact 70 is carried by a lever 75 which is pivoted, as at 76, to said block and has an extension 77 normally-disposed in the path of the end of the web. A spring 78 is applied to yieldingly hold lever 75 against a stop 7 8? which is positioned so extension 77 will be held in the path of the web, and to permit the lever to swing out of its path after it has operated the switch. As a result, when the end of the web strikes the extension 77, lever 75 will be swung to close the switch at contacts 70 and 71 which will close the electric cir-v cuit and engage magnet 80. The armature 84 will then lift the trip-lever 38 to release the stop-lever 31 and spring 31 will then withdraw the stop-lever to release the clutch. The block 72, on which the switch is mounted, is adjust-able on the bar 73 to and from the cutter mechanism, so that the length ofthe sheets severed from the web may be varied as desired. This construction exemplifies intermittent mechanism for operating the cutters hereinafter described, which is electro-magnetically controlled by the end of the web and is adjustable to sever sheets of different lengths from the web.

The cutter-mechanism comprises a car riage 44 which is slidably mounted on the frame 9 and comprises a bed 45, over which the web is fed by rollers 10. A cutter 46 is secured to the front end of the bed 45 and a rotary cutter 47 is secured to a mutilated roller 48 which is mounted to rotate in bearings 49 on the carriage 44. Normally, when the cutter-mechanism is at rest, the cutters.

are in the relative position shown in Fig. 5, so that theweb will be free to pass between them until the rotary cutter is operated toward the cutter 46. A sprocket 50 on the clutch-shaft 2O drives a chain 51 which operates a sprocket 52 on a cross shaft 53 which is mounted in fixed bearings 54. Crank-disks 55 are secured to the ends of shaft 53 respectively. This driving connection for the shaft 53 serves to operate this shaft a complete revolution every time that the clutch is rendered operative. Disks 55 serve to reciprocate the cutter-carriage 44 by means of links 56 which are pivoted, as at 57, to the crank-disks, and, as at 58, to bars 59, which are held on the sides of the carriage 44 by bolts 60 which pass through slots 61 movement of the bars relatively to the carriage. The bars 59 operate the carriage through yielding connections consisting of rods 62 which are fixed to thebars 59 respectively and pass and slide through guides 63 which are fixed to the carriage 44, and springs 64 which are engaged by members 65 on the rear end of rods 62, so that the power applied to the bars '59 will be yieldmgly applied to the carriage during its forward movement. During retraction of in said bars, and permit makes it possible to operate the carriage at a slightl 1 differential with respect to, or greater speed than, the web, so that when the latter is gripped between the cutters, the yielding connections will permit the cutters to grip the corrugated board and keep it under a slight tension.

During the advance of the carriage with the web, the rotary cutter 47 will be operated to sever the sheet by lever 90 which is fixed to one end of the shaft of roll 48. A. lug 95 on the roll 48 is adapted to engage an adjustable stop-screw by the inner end of a bar 97 fixed to the cutter carriage to normally position the rotary cutter so the web can pass under it. A one-Way dog 91 is pivoted to the upper end of lever 90 and has a tail 93 adapted to engage a stop-pin 94 on the lever. An abutment of cam 98 supported above the frame by a bar 99 engages the dog 91 during the forward movement of the. carriage 44 and lever 90, to rock said lever and cutter 47 to sever the sheet from the web as the carriage is moving forwardly with the web. A lug 100, which AlS adjustably fixed to the frame by bolts and slots 101, engages the lower end of lever 90 to pivotally retract the lever as it reaches the limit of its forward stroke and after the dog 91 has passed under and cleared abutment 98. A spring 91 is applied to dog 91 and connected to bar 97 to yieldingly hold the lever 90 and dog in normal position.

An abutment 102 fixed to the carriage 44 is adapted to engage the upper end of stoplever 31 as the carriage reaches the end of its forward stroke, so it will be locked by the trip-lever 38 and reset in readiness for the succeeding operation.-

That portion of the web which projects beyond the cutter-roll is supported at one side by a rail 103, whilst its other side is unsupported. The rail 103 is supported on legs 104 and an inclined support 105, consisting of rails between legs 104 and baseboard 106, is disposed to catch the sheets after they have been the sheets falling by gravity ontosaid sup port and forming a stack.

In operation, the finished corrugated web will be fed continuously from the rolls 10 and every time its front edge strikes and shifts the switch-lever 75, the circuit for the magnet 80 will be closed and the helix of said magnet will be energized. That W111 operate armature 84 to lift the triplever Thereupon, spring 31 will operate the stoplever 31 to release the clutch-pin 29 to perm1t springs 24 to throw the clutch-dogs 21 mto engagement with the constantly rotat- 96 which is carried severed from theweb,

38 and withdraw it from stud 31".

ing wheel 19. Thereupon, the clutch will become operative to drive shaft 53 and crank-disks 55 one complete revolution. Disks 55 during each revolution of shaft 53 and the clutch will reciprocate the cutter carriage 45 and the cutters thereon. During the forward stroke of the carriage, dog 92 on lever 90 will strike the stationary cam 98 and this will rock said lever and the rotary cutter 47 to sever the web. While the carriage is still moving forwardly, the dog 91 will pass under and clear cam 98. During the end portion of the forward stroke of the carriage, the lower end of lever 90 will encounter the stationary stop 100 to positively retract said lever and rotary cutter so the web may again pass between the cutters. During the retraction of the carriage, dog 91 will ride under cam 98, and the lever 90 will be held in 'its normal position by spring 91. Near the end of the retractable stroke of the carriage, dog 102 on the carriage will strike the upper end of stop-lever 31 and shift it into ,position to be locked by the trip-lever 38 in position to stop the clutch at the end of each revolution thereof. After the web opcrates the switch-lever 75, its extension 77 will pass under the web to permit it to continue its forward movement until the sheet has been severed. The magnet will be deenergized by the breaking of the circuit at contacts 7 O, 71 during the retraction of the carriage and as soon as the switch-lever is released by sheets. .By adjusting the block- 72 on which the switch-lever is mounted, to or from the cutters, the length of the sheet may be varied as desired and no other adjustment is necessary for that purpose.

The invention exemplifies electro-magnetically controlled cutter mechanism which may be readily adjusted for sheets of different lengths.

The invention is not to be understood as restricted to the details set forth, since these may be modified within the scope of the appended claims, without departing from the spirit and scope of the invention.

Having thus described the invention, what I claim as new anddesire to secure'by Letters Patent, is

1. In a machine of the character described, the combination of mechanism for continuously feeding a web, a reciprocable carriage movable in the line of the web, co-- acting cutters mounted on the carriage and adapted to sever the web into sheets mechanism for intermittently reciprocat ng the carriage to travel synchronously with the web comprising elements adapted to be rendered operative to instantly start the carriage at any time while it is at rest. and

electro-magnetic means comprising an element shifted by the moving web for rendering said elements operative.

2. In a machine of the character described, the combination of mechanism for continuously feeding a web, a reciprocable carriage movable in the line of the web, co-acting cutters mounted on the carriage and adapted to sever the web into sheets,

mechanism for intermittently reciprocating.

the carriage to travel synchronously with the webwomprising element-s adapted to be rendered operative to instantly start the carriage at any time while it is at rest, one of said cutters being movable on the carriage, means for shifting the movable cutter relatively to the other during the movement of the carriage with the web,

and electro-magnetic means controlled by web. whereby the clutch may be rendered operative at any time.

4:. In a machine of the character described, the combination of mechanism for continuously feeding a web, a reciprocable carriage movable in the line of the web, cutters mounted on the carriage, intermittent mechanism for reciprocating the carriage comprising a clutch, stop-means for the clutch, a tripfor said stop-means, an electro-magnet for operating the trip and a switch operable by the web for controlling the magnet.

5. In a machine of the character described, the combination of mechanism for continuously feeding a web, a reciprocable carriage .movable in the line of the web,

cutters" mounted on the carriage, intermittent mechanism for reciprocating the carriage, comprising a clutch, stop-means for the clutch, a trip for said stop-means. an electro-magnet for operating the trip. a switch operable by the end of the web for coi'itrolling the magnet. and a support adjustable to and from the cutter-mechanism to vary the length of the sheets SQWBIEKI from-the web.

" BEWARE- E. MASTOK 

